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Numerical simulation study of the performance of a small neutron three axis spectrometer

Willendrup, Peter LU and Cussen, L. D. LU (2011) In Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment 637(1). p.109-118
Abstract
This article describes Monte Carlo computer simulations comparing the performances of a conventional neutron three axis spectrometer (TAS) and a micro-TAS, a mu TAS, designed to be as compact as seems practical. The simulations show that the mu TAS delivers performance (intensity at equal resolution) equivalent to that of a normal TAS. The mu TAS should be very cheap to build and a "farm" of several such small machines at a single conventional instrument position should greatly increase the TAS beam time available from a given source. A mu TAS can deliver significantly larger beam angular divergence at the sample and detector, thus extending the accessible resolution-intensity range, whether using flat or curved monochromating crystals.... (More)
This article describes Monte Carlo computer simulations comparing the performances of a conventional neutron three axis spectrometer (TAS) and a micro-TAS, a mu TAS, designed to be as compact as seems practical. The simulations show that the mu TAS delivers performance (intensity at equal resolution) equivalent to that of a normal TAS. The mu TAS should be very cheap to build and a "farm" of several such small machines at a single conventional instrument position should greatly increase the TAS beam time available from a given source. A mu TAS can deliver significantly larger beam angular divergence at the sample and detector, thus extending the accessible resolution-intensity range, whether using flat or curved monochromating crystals. (C) 2011 Elsevier B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Three-axis spectrometer, TAS, Micro, Neutron, McStas, Design study
in
Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
volume
637
issue
1
pages
109 - 118
publisher
Elsevier
external identifiers
  • wos:000289608000013
  • scopus:79952988715
ISSN
0167-5087
DOI
10.1016/j.nima.2011.01.118
language
English
LU publication?
yes
id
edcc900e-e013-413d-bae1-b0c4b8bfe7fc (old id 1965494)
date added to LUP
2011-05-23 10:19:32
date last changed
2017-01-01 06:19:24
@article{edcc900e-e013-413d-bae1-b0c4b8bfe7fc,
  abstract     = {This article describes Monte Carlo computer simulations comparing the performances of a conventional neutron three axis spectrometer (TAS) and a micro-TAS, a mu TAS, designed to be as compact as seems practical. The simulations show that the mu TAS delivers performance (intensity at equal resolution) equivalent to that of a normal TAS. The mu TAS should be very cheap to build and a "farm" of several such small machines at a single conventional instrument position should greatly increase the TAS beam time available from a given source. A mu TAS can deliver significantly larger beam angular divergence at the sample and detector, thus extending the accessible resolution-intensity range, whether using flat or curved monochromating crystals. (C) 2011 Elsevier B.V. All rights reserved.},
  author       = {Willendrup, Peter and Cussen, L. D.},
  issn         = {0167-5087},
  keyword      = {Three-axis spectrometer,TAS,Micro,Neutron,McStas,Design study},
  language     = {eng},
  number       = {1},
  pages        = {109--118},
  publisher    = {Elsevier},
  series       = {Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment},
  title        = {Numerical simulation study of the performance of a small neutron three axis spectrometer},
  url          = {http://dx.doi.org/10.1016/j.nima.2011.01.118},
  volume       = {637},
  year         = {2011},
}